Reduce amnesic storage

src/freedombone-image-mesh

 MESH_AMNESIC=/root/.amnesic
 
 # Tomb containing logs
-TOMB_LOG_SIZE_MB=32
+TOMB_LOG_SIZE_MB=10
 
 # size of the tomb used to store qtox settings
-TOMB_TOX_SIZE_MB=32
+TOMB_TOX_SIZE_MB=10
 
 # Tomb containing tox bootstrap
 TOMB_TOX_BOOTSTRAP_SIZE_MB=10